Yes, one could make masks and use Blender nodes driven by these masks to pick different colors.

There's a V4 lip mask around somewhere. I can't remember where.

And it's probably pretty easy to make nipple masks.

But, as easily as you can draw the masks, hooking them up would be a bit of work, as you'd have to name them and such. It can be done, but it isn't a one-click thing. You have to load these masks up into each target material zone, rename the nodes, create similar empty Image_Map nodes in the shader, name those to match, and hook the mask up to a Blender in the Template Skin.

It would be less work to just make an albino textures set. Just start with white, then draw red where you want it. Load those onto the figure as trivial skin materials. Then synchronize with VSS.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)